Z02205 Datasheet | Zilog

FEATURES Device Z02205 ROM (KB) 16 RAM- (Bytes) 237 Speed (MHz) 16 ‡ ‡ ‡ ‡ ‡ ‡ Includes AT mand set interpreter in on-chip ROM- no external memory required Supports Tone dial or Pulse dial Call progress monitoring controls Handshake controls Guard Tone controls Line quality monitoring and Auto-Retrain ‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡ Auto-Dial and Auto-Answer Glueless interface to Z02201 modem data pump Watch-Dog Timer (WDT)/Power-On Reset (POR) Type-I Caller ID Dynamic power management CMOS design for low power consumption 0°C to +70°C mercial temperature range 28-pin DIP, SOIC package 4.5V to 5.5V operating range GENERAL DESCRIPTION The Z02205 V.22bis Modem Controller serves as the modem controller in embedded V.22bis modem applications. A plete modem can be made by adding Zi LOG data pump (Z02201), phone line interface, and the required DTE interface. The Z02205 has been designed for low-cost use and includes a glueless interface to the Zi LOG data pumps. The Z02205 is ideal for applications where small size and low power consumption are requirements. The Z02205 operates over dial-up telephone connections, provides auto-dial and ring detect, and operates in either SYNC or ASYNC modes. The Z02205 includes AT mand and modem control firmware in on-chip ROM. It also includes enhanced wakeup circuitry, programmable Watch-Dog Timers (WDT), and low-noise/EMI options. AT mands stored on-chip in ROM provide control over the following modem controller functions: PS001000-MOD0599 ‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡ Call progress monitoring Handshake negotiation Dial controls- pulse or tone S-registers Auto-answer and auto-dial Guard tones On-hook and off-hook Auto-retrain Standard Z02205 sample devices and demonstration...